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Date: Fri, 27 May 2011 15:22:24 +0400
From: Gleb Smirnoff <glebius@FreeBSD.org>
To: Joerg Wunsch <joerg_wunsch@uriah.heep.sax.de>
Message-ID: <20110527112224.GK74366@FreeBSD.org>
References: <20110524060026.E8285AA@uriah.heep.sax.de>
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Cc: freebsd-bugs@FreeBSD.org, FreeBSD-gnats-submit@FreeBSD.org
Subject: Re: kern/157287: re0: INVARIANTS panic (Memory modified after free)
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On Thu, May 26, 2011 at 05:54:24PM +0200, Joerg Wunsch wrote:
J> As it turns out this might be related to something else that has been
J> using that piece of memory before re(4) is activated, here are the
J> boot messages for reference.

You can try to add 'options DEBUG_MEMGUARD' to your kernel config,
and add the 'vm.memguard.desc=devbuf' to your /boot/loader.conf.

This may help to find place where memory is tampered after free.

-- 
Totus tuus, Glebius.